CN219266126U - Visual inspection universal platform - Google Patents

Abstract

The utility model relates to the technical field of visual detection, in particular to a general platform for visual detection. It includes a platform main body, which includes a horizontal platform arranged horizontally and a mounting frame vertically arranged at the horizontal platform; the horizontal platform is provided with a mobile loading mechanism for loading products and adjusting the angular position of the product; the mounting frame is provided with a mobile A visual inspection mechanism for visual inspection of products above the loading mechanism. Through the mobile loading mechanism in the utility model, the mobile transportation of the product to be inspected between the loading and unloading position and the detection position can be preferably completed; in addition, when the product to be inspected is moved to the detection position by the mobile loading mechanism, the mobile loading mechanism can Cooperating with the inspection of the visual inspection agency, it is necessary to adjust the angular position of the product to be inspected in real time; so as to achieve better inspection results and ensure a higher accuracy of defect detection.

Description

A general platform for visual inspection

technical field

The utility model relates to the technical field of visual detection, in particular to a general platform for visual detection.

Background technique

At present, with the increasing precision of small products such as 3C, automobiles, and electronics, and the popularization of automated batch manufacturing models, the accuracy and cycle requirements of appearance defect detection are becoming more and more stringent. The traditional manual visual inspection method has the problems of high labor intensity, low efficiency and poor detection consistency, which can no longer meet the needs of product production efficiency and quality improvement. Now there are some appearance defect equipment based on machine vision on the market, but most of them are developed based on different detection surfaces of specific models of products. To achieve full coverage of appearance defects, it is necessary to build a multi-station, multi-light source and multi-angle inspection system, resulting The production line is too long, the equipment is too large, and the flexibility is too poor. It is difficult to meet the needs of rapid iteration of various products. The whole industry lacks a flexible visual inspection equipment that can be used universally.

Products have various scales, complex shapes, and subtle features. The key to general vision equipment is to realize composite lighting and quick photography of polyhedrons and curved surfaces of various products, and intelligently identify appearance defects. Product polyhedrons and curved surfaces are generally processed using five-axis or more linkage machine tools, so the high-precision five-axis movement of the product can be compatible with the motion freedom requirements of all detection surfaces of various products, compound lighting and fast photo taking, while avoiding six-axis manipulators And the above kinematic mechanism leads to the problem of high cost caused by complex teaching and high precision, and realizes equipment miniaturization, product generalization, detection flexibility and cost saving.

Therefore, it is of great significance to develop a general platform for visual inspection with equipment miniaturization, product generalization, inspection flexibility, and cost saving to replace existing products and realize manufacturing upgrading and industry transformation.

Utility model content

Aiming at the technical problems existing in the prior art, the utility model provides a general platform for visual detection. It includes a platform main body, which includes a horizontal platform arranged horizontally and a mounting frame vertically arranged at the horizontal platform; the horizontal platform is provided with a mobile loading mechanism for loading products and adjusting the angular position of the product; the mounting frame is provided with a mobile A visual inspection mechanism for visual inspection of products above the loading mechanism.

Through the mobile loading mechanism in the utility model, the mobile transportation of the product to be inspected between the loading and unloading position and the detection position can be preferably completed; in addition, when the product to be inspected is moved to the detection position by the mobile loading mechanism, the mobile loading mechanism can Cooperating with the inspection of the visual inspection agency, it is necessary to adjust the angular position of the product to be inspected in real time; so as to achieve better inspection results and ensure a higher accuracy of defect detection.

Preferably, the mobile loading mechanism includes an x-axis rotation mechanism and a y-axis movement mechanism for driving the x-axis rotation mechanism to move along the y-axis direction; the y-axis movement mechanism is arranged on the upper surface of the installation platform along the y-axis direction; the x-axis rotation The mechanism includes a rotating plate installed on the upper side of the y-axis moving mechanism along the x-axis direction through a U-shaped frame. The rotating plate is provided with a plurality of clamping positions for clamping products that are movably connected to it at intervals along the x-axis direction; The position rotates around the y-axis direction relative to the rotating plate; the rotating plate rotates around the x-axis direction relative to the mounting plate.

The y-axis moving mechanism can preferably drive the x-axis rotating mechanism and the product fixed at the x-axis rotating mechanism to move along the y-axis direction, so as to realize the stable movement of the product between the loading and unloading position and the detection position. It is worth noting that this The mobile loading mechanism in the utility model is set on one side, so the structure of the whole platform body can be made more compact, thereby realizing the miniaturization of the product, and thus better suitable for some working environments with limited space. In addition, the product can be preferably fixed on the rotating plate through the clamping position, and the angle adjustment of the product in the y-axis rotation direction can be preferably realized by rotating the clamping position around the y-axis direction, so as to better realize General inspection of different parts of the product.

Further, the clamping position is set at the rotating plate that rotates around the x-axis direction, so the rotating plate can drive the clamping position and the product at the clamping position to rotate around the x-axis direction, so the product can be rotated on the x-axis Angle adjustment in the direction, and then combined with the aforementioned rotation in the y-axis direction, the shape adjustment of the product in space has a larger adjustable range, so that it can better adjust to different detection parts of different products to be inspected; Excellent product versatility and detection flexibility.

Preferably, the y-axis moving mechanism includes a y-axis linear motor and a y-axis linear guide rail arranged along the y-axis direction, and the y-axis linear guide rail is symmetrically arranged on both sides of the y-axis linear motor; the y-axis linear guide rail is provided with a U-shaped The y-axis moving plate of the frame, the y-axis linear motor drives the moving plate to move along the y-axis linear guide rail; the U-shaped frame is arranged and installed on the upper surface of the y-axis moving plate along the x-axis direction and moves along the y-axis direction; the U-shaped The above-mentioned rotating plate is installed between the vertical plates at the two ends of the frame in the x-axis direction. One end of the rotating plate is connected to the output end of the x-axis servo motor on the outer wall of the vertical plate at one end of the U-shaped frame, and the other end is connected to the other end of the U-shaped frame through a bearing. One end riser is connected by rotation.

The stable movement of the y-axis moving plate along the y-axis direction can be better ensured by the y-axis linear motor and the y-axis linear guide rail. Specifically, the y-axis linear motor can maintain high position accuracy and at the same time realize different working speeds by adjusting voltage and frequency more conveniently, so that it is suitable for different detection needs of different products, and then realizes the platform main body for different products. General use.

In addition, the x-axis servo motor can better drive and control the rotating plate and the product fixed at the clamping position on the rotating plate to rotate along the x-axis direction, so as to achieve a more stable position around the x-axis direction when the product is at the detection position Angle adjustment.

Preferably, the rotating plate is arranged with five y-axis servo motors at intervals along the x-axis direction, and each clamping position is respectively set at the output end of each y-axis servo motor and rotates around the y-axis; five clamps arranged along the x-axis direction The holding positions sequentially form the first station to the fifth station for fixing the product and accepting the inspection of the visual inspection mechanism.

The y-axis servo motor can stably drive the clamping position and the rotation of the product fixed at the clamping position around the y-axis direction, so as to better cooperate with the visual inspection mechanism to detect the product to be inspected. In addition, it is worth noting that in the utility model, the first station to the fifth station are respectively driven by independent y-axis servo motors, so that the products at different stations can rotate around the y-axis direction independently of each other ; Through such mutually independent station settings, the visual inspection mechanism can be adjusted to the corresponding detection angle according to the detection needs of the products at different stations when the visual inspection mechanism is detecting, thereby ensuring the The main body of the platform can be more flexibly applied to a variety of testing conditions with different requirements, and has better versatility.

Preferably, the visual inspection mechanism includes a z-axis moving mechanism for assembling the visual inspection camera and driving the visual inspection camera to move along the z-axis direction to adjust the shooting focus, and also includes an x-axis moving mechanism for driving the z-axis moving mechanism to move along the x-axis direction Moving mechanism; the x-axis moving mechanism is arranged at the mounting frame along the x-axis direction, the z-axis moving mechanism is installed at the x-axis moving mechanism along the z-axis direction, and the visual inspection camera follows the x-axis moving mechanism along the x-axis direction through the z-axis moving mechanism The shooting and detection area of the visual inspection camera is formed under the moving path during movement, and the first station to the fifth station are all covered in the shooting and detection area.

The x-axis moving mechanism can preferably stably drive the z-axis moving mechanism and the visual detection camera to move along the x-axis direction, so that the movement of the x-axis moving mechanism along the x-axis direction can be controlled by the relevant control device to realize the visual detection camera. Circular detection from the first station to the fifth station, at the same time, the z-axis moving mechanism can also drive the visual inspection camera to move along the z-axis according to the different inspection needs of products at different stations to adjust the focal length of the camera to achieve better shooting Detection effect.

Preferably, the x-axis moving mechanism includes an x-axis linear guide rail and an x-axis linear motor arranged at the mounting frame along the x-axis direction, and also includes an x-axis slidingly fitted with the x-axis linear guide rail along the x-axis direction driven by the x-axis linear motor The moving plate; the z-axis moving mechanism is arranged and installed at the x-axis moving plate.

The x-axis linear motor and the x-axis linear guide rail can ensure the stable movement of the x-axis moving plate and the z-axis moving along the x-axis direction. Specifically, the x-axis linear motor can also adjust the moving speed more conveniently so as to be suitable for different detection needs of different products.

Preferably, the z-axis moving mechanism includes a z-axis mounting plate installed on the x-axis moving plate along the z-axis direction, and a z-axis linear guide rail and a z-axis ball screw are arranged on the z-axis mounting plate along the z-axis direction, and the z-axis The linear guide rail is provided with a z-axis slider that slides and cooperates with it. The z-axis ball screw is connected to a z-axis servo motor. The z-axis servo motor drives the z-axis slider to slide along the z-axis linear guide through the z-axis ball screw. A z-axis servo motor; the z-axis slider is provided with a z-axis camera mounting plate that moves along the z-axis direction, and the z-axis camera mounting plate is provided with a camera mounting position for installing a visual inspection camera.

Description of drawings

Fig. 1 is the structural representation of the platform main body in embodiment 1;

Fig. 2 is the structural representation of horizontal platform and mobile loading mechanism in embodiment 1;

Fig. 3 is the structural representation of horizontal platform, y-axis moving structure and U-shaped frame in embodiment 1;

Fig. 4 is the structural representation of U-shaped frame and x-axis rotating mechanism in embodiment 1;

Fig. 5 is the structural representation of mounting frame and visual detection mechanism in embodiment 1;

FIG. 6 is a schematic structural view of the mounting frame and the x-axis moving mechanism in Embodiment 1;

FIG. 7 is a schematic structural view of the z-axis moving mechanism in Embodiment 1;

Detailed ways

In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present utility model rather than limiting it.

Example 1

As shown in Figures 1-7, the present embodiment provides a general platform for visual inspection, which includes a platform main body 100, and the platform main body 100 includes a horizontal platform 110 arranged horizontally and a mounting frame 120 vertically arranged at the horizontal platform 110; The horizontal platform 110 is provided with a mobile loading mechanism 130 for loading products and adjusting the angular position of the products; the installation frame 120 is provided with a visual inspection mechanism 140 above the mobile loading mechanism 130 for visual inspection of products.

Specifically, the mobile transportation of the product to be inspected between the loading and unloading position and the detection position can be preferably completed through the mobile loading mechanism 130 in this embodiment; in addition, when the product to be inspected is moved to the detection position by the mobile loading mechanism 130 , the mobile loading mechanism 130 can adjust the angular position of the product to be inspected in real time in accordance with the detection needs of the visual inspection mechanism 140; thereby achieving better detection results and ensuring a higher accuracy of defect detection.

In this embodiment, the length direction and the width direction of the horizontal platform 110 are respectively used as the x-axis and y-axis directions of the space rectangular coordinate system where the platform body 100 is located, and the vertical direction is used as the z-axis direction. In this embodiment, as shown in Figure 2, the mobile loading mechanism 130 includes an x-axis rotating mechanism 132 and a y-axis moving mechanism 131 for driving the x-axis rotating mechanism 132 to move along the y-axis direction; the y-axis moving mechanism 131 is arranged along the y-axis direction On the upper surface of the installation platform, as shown in Figure 4, the x-axis rotating mechanism 132 includes a rotating plate 1321 installed on the upper side of the y-axis moving mechanism 131 along the x-axis direction through the U-shaped frame 210, and the rotating plate 1321 is spaced apart along the x-axis direction There are multiple clamping positions for clamping products that are movably connected with it; the clamping positions rotate around the y-axis direction relative to the rotating plate 1321; the rotating plate 1321 rotates around the x-axis direction relative to the mounting plate.

It can be understood that the y-axis moving mechanism 131 can preferably drive the x-axis rotating mechanism 132 and the product fixed at the x-axis rotating mechanism 132 to move along the y-axis direction, so as to realize the stability of the product between the loading and unloading position and the detection position Mobile, it is worth noting that the mobile loading mechanism 130 in this embodiment is set on one side, so the structure of the entire platform body 100 can be made more compact, so as to realize the miniaturization of the product, which is better suitable for some working environments with limited space . In addition, the product can be preferably fixed on the rotating plate 1321 through the clamping position, and the angle adjustment of the product in the y-axis rotation direction can be preferably realized by rotating the clamping position around the y-axis direction, thereby preferably Realize the general inspection of different parts of the product.

Further, the clamping position is set at the rotating plate 1321 that rotates around the x-axis direction, so the rotating plate 1321 can drive the clamping position and the product at the clamping position to rotate around the x-axis direction, so that the product can be rotated in the x-axis direction. The angle adjustment in the axis rotation direction, and then cooperate with the above-mentioned rotation in the y-axis direction to make the shape adjustment of the product in space have a larger adjustable range, so that it can be better adjusted with different detection parts of different products to be inspected; It has better product versatility and detection flexibility.

Specifically, referring to FIG. 2 to FIG. 4, the y-axis moving mechanism 131 includes a y-axis linear motor 1312 arranged along the y-axis direction and a y-axis linear guide rail 1311, and the y-axis linear guide rail 1311 is symmetrically arranged on both sides of the y-axis linear motor 1312 The y-axis linear guide rail 1311 is provided with a y-axis moving plate 1313 for installing the U-shaped frame 210, and the y-axis linear motor 1312 drives the moving plate to move along the y-axis linear guide rail 1311; the U-shaped frame 210 is arranged and installed on the y-axis along the x-axis direction. The upper surface of the shaft moving plate 1313 moves along the y-axis direction thereupon; the aforementioned rotating plate 1321 is installed between the vertical plates 211 at both ends of the U-shaped frame 210 in the x-axis direction, and one end of the rotating plate 1321 is connected to one end of the U-shaped frame 210. The output end of the x-axis servo motor 1322 at the outer wall of the vertical plate 211 is connected, and the other end is rotationally connected with the vertical plate 211 at the other end of the U-shaped frame 210 through a bearing.

It can be understood that the stable movement of the y-axis moving plate 1313 along the y-axis direction can be better ensured by the y-axis linear motor 1312 and the y-axis linear guide rail 1311 . Specifically, the y-axis linear motor 1312 can maintain high position accuracy and at the same time realize different working speeds by adjusting the voltage and frequency more conveniently, so that it is suitable for different detection needs of different products, and then realizes that the platform main body 100 is suitable for different Universal use of the product.

In addition, the x-axis servo motor 1322 can better drive and control the rotating plate 1321 and the product fixed at the clamping position of the rotating plate 1321 to rotate along the x-axis direction, so as to achieve a more stable rotation around the x-axis when the product is at the detection position. Direction position angle adjustment.

Further, with reference to FIG. 4 , five y-axis servo motors 1323 are arranged at intervals along the x-axis direction on the rotating plate 1321, and each clamping position is respectively set at the output end of each y-axis servo motor 1323 and rotates around the y-axis; The five clamping positions arranged in the axial direction sequentially form the first station to the fifth station for fixing the product and accepting the detection by the visual inspection mechanism 140 .

Specifically, the y-axis servo motor 1323 can stably drive the clamping position and the rotation of the product fixed at the clamping position around the y-axis direction, so as to better cooperate with the visual inspection mechanism 140 to detect the product to be inspected. In addition, it is worth noting that in this embodiment, the first station to the fifth station are respectively driven by independent y-axis servo motors 1323, so that the products at different stations can rotate independently of each other in the y-axis direction. Rotation; through such mutually independent station setting can make the visual inspection mechanism 140 when testing, the products at different stations can be adjusted to the corresponding detection angle according to the detection needs of the products at the respective stations, thus ensuring the The platform main body 100 in this example can be more flexibly applied to a variety of testing conditions with different requirements, and has better versatility.

In this embodiment, with reference to Fig. 5, Fig. 6 and Fig. 7, the visual detection mechanism 140 includes a z-axis moving mechanism 142 for assembling the visual detection camera and driving the visual detection camera to move along the z-axis direction to adjust the shooting focal length, and also includes The x-axis moving mechanism 141 that drives the z-axis moving mechanism 142 to move along the x-axis direction; the x-axis moving mechanism 141 is arranged at the mounting frame 120 along the x-axis direction, and the z-axis moving mechanism 142 is installed on the x-axis moving mechanism along the z-axis direction At 141, the visual inspection camera forms the shooting detection area of the visual inspection camera under the moving path when the z-axis moving mechanism 142 follows the x-axis moving mechanism 141 along the x-axis direction, and the first station to the fifth station are covered. Shoot within the detection area.

It can be understood that the x-axis moving mechanism 141 can preferably stably drive the z-axis moving mechanism 142 and the visual detection camera to move along the x-axis direction, so that the movement of the x-axis moving mechanism 141 along the x-axis direction can be carried out through the relevant control device. Control to realize the reciprocating inspection of the visual inspection camera from the first station to the fifth station, and at the same time, the z-axis moving mechanism 142 can also drive the visual inspection camera to move along the z-axis according to the different inspection needs of products at different stations to adjust the camera Shooting focal length to achieve better shooting detection effect.

In addition, the first station to the fifth station in this embodiment are all inspected by the same visual inspection camera, and the cost can be better reduced through such a setting; on the one hand, compared with each station equipped with corresponding The cost of a single camera is less; on the other hand, if multiple cameras are used to inspect multiple stations, the inspector must accurately maintain the distance between each camera and each station when assembling the cameras. The distance between the positions should be consistent, otherwise it may cause deviation between the shooting area of the camera and the position; therefore, the assembly and debugging costs of multiple cameras and the accuracy requirements are high. In the actual detection process, the whole process is error-free and smooth. It is difficult to carry out, it is difficult to apply to some inspectors with limited debugging and assembly ability, and the versatility is poor; moreover, multiple cameras need to be equipped with corresponding focal length adjustment mechanisms, which may lead to the structure of the entire device being not compact enough, and Also can cause the operation control of whole device to be comparatively complicated.

Specifically, wherein, as shown in FIG. 6 , the x-axis moving mechanism 141 includes an x-axis linear guide rail 1411 and an x-axis linear motor 1412 arranged along the x-axis direction at the mounting frame 120, and also includes an x-axis linear motor 1412 driven by the x-axis linear motor 1412 to move along the x-axis. direction and the x-axis moving plate 1413 slidingly matched with the x-axis linear guide rail 1411; the z-axis moving mechanism 142 is arranged and installed at the x-axis moving plate 1413.

It can be understood that the x-axis moving plate 1413 and the z-axis moving movement can be stably moved along the x-axis direction through the x-axis linear motor 1412 and the x-axis linear guide rail 1411 . To be specific, the x-axis linear motor 1412 can also adjust the moving speed more conveniently so as to be suitable for different detection requirements of different products.

Further, as shown in FIG. 7 , the z-axis moving mechanism 142 includes a z-axis mounting plate 1421 arranged and installed on the x-axis moving plate 1413 along the z-axis direction, and a z-axis linear guide rail 1422 is arranged on the z-axis mounting plate 1421 along the z-axis direction and the z-axis ball screw 1423, the z-axis linear guide 1422 is provided with a z-axis slider slidingly matched with it, the z-axis ball screw 1423 is connected to the z-axis servo motor 1424, and the z-axis servo motor 1424 passes through the z-axis ball wire The rod 1423 is used to drive the z-axis servo motor 1424 that the z-axis slider slides along the z-axis linear guide rail 1422; the z-axis slider is provided with a z-axis camera mounting plate 1425 that moves along the z-axis direction, and the z-axis camera mounting plate 1425 There is a camera mounting position for installing a visual inspection camera.

Specifically, through the z-axis linear guide rail 1422 and the z-axis ball screw 1423, the z-axis camera mounting plate 1425 and the smooth movement of the visual inspection camera along the z-axis direction can be preferably realized, thereby realizing effective adjustment of the focal length of the visual inspection camera , so as to ensure the accuracy of the shooting test results.

In addition, the z-axis camera mounting plate 1425 can also be equipped with different auxiliary tools according to different products, such as glue dispensing devices or screw driving devices, etc.; the light sources required for visual inspection can be combined with existing models to achieve composite printing light effect.

In general, the products located at each station can firstly be rotated around the y-axis by the y-axis servo motor 1323 to have the degree of freedom of the y-axis rotation direction. Moreover, each station is located on the rotating plate 1321 and can rotate with the rotating plate 1321 around the x-axis through the x-axis servo motor 1322 so as to have a degree of freedom in the direction of the x-axis rotation; at the same time, the rotating plate 1321 is set on the y-axis to move The plate 1313 can move along the y-axis direction accordingly, so the products at each station have degrees of freedom in three directions: the y-axis rotation direction, the y-axis movement direction and the x-axis rotation direction. Further, the visual detection camera can move along the z-axis direction with the z-axis camera mounting plate 1425, and the visual detection camera can also move along the x-axis direction following the x-axis moving plate 1413, therefore, the visual detection camera has the ability to move in the z-axis direction and degrees of freedom to move in the x-axis direction. It can be understood that the product and the visual inspection camera at the platform main body 100 in this embodiment have a total of five axial degrees of freedom. Since product polyhedrons and curved surfaces are generally processed using a five-axis or more linkage machine tool, the The platform main body 100 can perform high-precision five-axis motion while realizing equipment miniaturization, product generalization, detection flexibility, and cost saving, so that it is better compatible with the motion of complex lighting and fast photo shooting of all detection surfaces of various products degrees of freedom required.

Example 2

This embodiment provides a visual detection method based on the platform body 100 in Embodiment 1, which includes the following steps:

Step 1: Fix and install the same batch of products to be inspected one by one at the first station to the fifth station and maintain a consistent initial state, and move to the shooting detection area of the visual inspection camera through the y-axis moving mechanism 131;

Step 2: Drive the rotary plate 1321 and the products at each station to rotate along the x-axis rotation direction through the x-axis servo motor 1322 until the first detection part to be detected by each product is directly above and waits for the visual detection camera to perform visual detection .

Step 3: The x-axis linear motor 1412 drives the x-axis moving plate 1413 and the visual detection camera to move along the x-axis direction, and at the same time, the visual detection camera performs visual detection on the products at the first station to the fifth station in sequence; wherein, when After the visual inspection camera has finished detecting the product at the first station, the visual inspection camera moves to the second station. At this time, the product at the first station is driven by the y-axis servo motor 1323 to rotate around the y-axis to the desired location. The second detection part to be detected is facing the top to wait for the visual detection of the visual detection camera; the subsequent second to fifth stations are the same as the above process;

Step 4: After the visual inspection camera completes the detection of the first detection part of the product at the fifth station, it moves above the first station through the x-axis servo motor 1322 to start moving from the first station to the fifth station one by one Detect the second detection part of the product. Since the focal lengths of the second detection part and the first detection part may be different, before the second detection part of the product at the first station is detected, the test personnel The visual detection camera can be driven to move along the z-axis direction by the z-axis moving mechanism 142 to adjust the shooting focal length.

Step 5: Repeat the aforementioned steps 3 and 4, according to the actual detection needs, detect the detection parts of the product at different y-axis rotation angles under the same x-axis rotation angle;

Step 6: Drive the rotary plate 1321 through the x-axis servo motor 1322 to change the rotational position of the product around the x-axis direction at the rotary plate 1321 and each station, and then repeat the aforementioned third to fifth steps to position the product in more The detection part in the angle form is detected.

Through the above-mentioned visual detection method, it is possible to stably and efficiently perform visual detection and analysis on multiple detection parts required to be detected by the product, and has high detection efficiency and detection speed.

Example 3

This embodiment provides a visual detection method for the middle frame of a mobile phone based on the platform main body 100 in Embodiment 1, which includes the following steps:

Step 1: Fix the middle frame of the mobile phone to be tested at the first station to the fifth station;

Step 2: The visual inspection camera moves to the first station, takes a plan view, identifies the model, defect and size measurement according to the template, and then completes the product plane inspection at the second to fifth stations;

Step 3: The x-axis servo motor 1322 selects 90 degrees, and the outer side faces the visual inspection camera, and the visual inspection camera moves to the first station to detect defects and size measurements on the first outer side of the model; after completion, the camera moves Go to the second station, detect the first side outside the model (due to the difference in product size of different models, the camera needs to be lowered and fine-tuned), and the first station moves to the second side outside; complete the third to fifth as mentioned above The first side of the station, while the second to fourth stations move to the second side;

Step 4: The visual inspection camera moves to the first station to complete the inspection of the second side of the station, and the fifth station moves to the second outer side at the same time; the visual inspection camera moves to the second station to complete the inspection The second side outside the station is detected, and the first station is moved to the third side outside; complete the detection of the four sides and four rounded corners outside all stations as described above;

Step 5: The x-axis servo motor 1322 drives the rotating plate 1321 to select an angle, and detects the inner first side of the first station facing the camera;

Step 6: Complete the detection of all 4 sides and 4 rounded corners inside all stations as described above. During the inner detection process, different types of products respond to different slope angles through fine-tuning angles of the U-shaped frame 210 . According to the actual needs, after the detection results of each side, glue can be added, screws and other actions can be added.

Through the above detection method, it is possible to visually detect the sides and rounded corners of the middle frame of the mobile phone with only one camera, and the structure is simple and compact. Compared with the size of the mobile phone, the whole journey can be completed within 2 seconds, so that a higher detection speed can be achieved.

It is easy to understand that, on the basis of one or several embodiments provided by this application, those skilled in the art can combine, split, recombine, etc., the embodiments of this application to obtain other embodiments, and these embodiments do not exceed the scope of this application. The scope of protection applied for.

The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and embodiment similar to the technical solution, it shall belong to the utility model protected range.

In a word, the above descriptions are only preferred embodiments of the utility model, and all equal changes and modifications made according to the scope of the patent application of the utility model shall fall within the coverage of the utility model patent.

Claims (7)

1. A common platform for visual inspection, characterized in that: it comprises a platform main body (100), and the platform main body (100) comprises a horizontal platform (110) arranged horizontally and a mounting frame (120) vertically arranged at the horizontal platform (110) place ); the horizontal platform (110) is provided with a mobile loading mechanism (130) for loading products and adjusting the angular position of the product; A visual inspection mechanism (140). 2. A general platform for visual inspection according to claim 1, characterized in that: the mobile loading mechanism (130) includes an x-axis rotation mechanism (132) and is used to drive the x-axis rotation mechanism (132) to move along the y-axis direction The y-axis moving mechanism (131); the y-axis moving mechanism (131) is arranged on the upper surface of the installation platform along the y-axis direction; the x-axis rotating mechanism (132) includes a U-shaped frame (210) installed on the x-axis direction The rotating plate (1321) on the upper side of the y-axis moving mechanism (131), the rotating plate (1321) is provided with a plurality of clamping positions for clamping products that are movably connected with it at intervals along the x-axis direction; the clamping positions are relatively rotating The plate (1321) rotates around the y-axis direction; the rotating plate (1321) rotates around the x-axis direction relative to the mounting plate. 3. A general platform for visual inspection according to claim 2, characterized in that: the y-axis moving mechanism (131) includes a y-axis linear motor (1312) and a y-axis linear guide rail (1311) arranged along the y-axis direction, The y-axis linear guide rail (1311) is symmetrically arranged on both sides of the y-axis linear motor (1312); the y-axis linear guide rail (1311) is provided with a y-axis moving plate (1313) for installing the U-shaped frame (210), and the y-axis The linear motor (1312) drives the moving plate to move along the y-axis linear guide rail (1311); the U-shaped frame (210) is arranged and installed on the upper surface of the y-axis moving plate (1313) along the x-axis direction and then moves along the y-axis direction The aforementioned rotating plate (1321) is installed between the vertical plates (211) at the two ends of the U-shaped frame (210) in the x-axis direction, and one end of the rotating plate (1321) is connected with the vertical plate (211) at one end of the U-shaped frame (210). The output end of the x-axis servo motor (1322) at the outer wall is connected, and the other end is rotatably connected with the other end of the U-shaped frame (210) vertical plate (211) through a bearing. 4. A general platform for visual inspection according to claim 3, characterized in that five y-axis servo motors (1323) are arranged at intervals along the x-axis direction on the rotating plate (1321), and each clamping position is respectively set on each At the output end of the y-axis servo motor (1323) and rotate around the y-axis; five clamping positions arranged along the x-axis direction form the first station to the first station for fixing the product and accepting the detection of the visual inspection mechanism (140). Five stations. 5. A general platform for visual inspection according to claim 1, characterized in that: the visual inspection mechanism (140) includes a z-axis for assembling the visual inspection camera and driving the visual inspection camera to move along the z-axis direction to adjust the shooting focal length The moving mechanism (142) also includes an x-axis moving mechanism (141) for driving the z-axis moving mechanism (142) to move along the x-axis direction; the x-axis moving mechanism (141) is arranged on the mounting frame (120) along the x-axis direction , the z-axis moving mechanism (142) is installed at the x-axis moving mechanism (141) along the z-axis direction, and the visual detection camera follows the x-axis moving mechanism (141) along the x-axis direction through the z-axis moving mechanism (142) A shooting detection area of the visual inspection camera is formed under the moving path, and the first station to the fifth station are all covered in the shooting detection area. 6. A general platform for visual inspection according to claim 5, characterized in that: the x-axis moving mechanism (141) includes an x-axis linear guide rail (1411) arranged along the x-axis direction at the mounting frame (120) and x The x-axis linear motor (1412) also includes an x-axis moving plate (1413) driven by the x-axis linear motor (1412) and slidingly matched with the x-axis linear guide rail (1411) along the x-axis direction; the z-axis moving mechanism (142) is arranged and installed At the x-axis move the plate (1413). 7. A general platform for visual inspection according to claim 6, characterized in that: the z-axis moving mechanism (142) includes a z-axis mounting plate (1421) arranged at the x-axis moving plate (1413) along the z-axis direction ), the z-axis mounting plate (1421) is provided with a z-axis linear guide (1422) and a z-axis ball screw (1423) along the z-axis direction, and the z-axis linear guide (1422) is provided with a z-axis sliding fit The slide block, the z-axis ball screw (1423) is connected with the z-axis servo motor (1424), and the z-axis servo motor (1424) drives the z-axis slider along the z-axis linear guide rail (1422) through the z-axis ball screw (1423). ) sliding z-axis servo motor (1424); the z-axis slider is provided with a z-axis camera mounting plate (1425) that moves along the z-axis direction, and the z-axis camera mounting plate (1425) is provided with a The camera mount for the camera.

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